Wall-packet for oil-wells.



No. 746,184. PATENTED DEC. a, 1903. E. SMITH & w. WRIGHT.

WALL PAGKERFOR OIL WELLS.

APPLICATION nun we. 13. 1903.

no 110mm.

W\TNE$$E$ \NVENTORS HARRY SNHTH f .I I W\\ \AN\ wm eyn' ATTORNEY ma NORRIS PETERS 00.. Pucrmu'mu. WASNINOTON, u. c.

UNITED I STATES Patented December 8, 1903.

PATENT OFFI E.-

WALL-PACKER FQR -OlL-WELLS.

SPECIFICATION forming part of Letters Patent No. 746,184, dated December 8, 1903. Application filed August 13, 1903- Serial N0 169,319. (No model.)

To all whom it may concern.-

Beit known that we,HARRY SMITH and WIL- LIAM WRIGHT, citizens of the United States, residing at Franklin, in the county of Venango and State of Pennsylvania, have invented certain new anduseful Improvements in Wall-Packers for Oil-Wells, of which the following is a specification, reference being had therein to the accompanying drawing.

Our invention relates to an improved wall-- packer for oil-wells, and will be fully understood by a reference to the accompanying drawing, forming a part of this specification, and in which the figure is a section of tubing to which our improved wall-packer is attached, said packer being shown in section.

Qur device consists of a section of tubing 1, having attached thereto a packer 2, composed of any suitable material, but prefer-v ably rubber, of such composition as to resist the chemical action of crude petroleum and salt water.

Our packer is of cup-shaped conformation open at the bottom, with the wallof said opening extended into upwardly and downwardly projecting flanges 3 and 3.

The section of tubing upon which this packer is placed is externally screw-threaded for a considerable distance at one end, and thereon is placed an internally-screw-threaded collar 4, with its annular concentric lip 5 facing downward. Said lip is formed in such a manner as to form a channel between the same and the periphery of the tubing 1. Said tubing is then inserted in the packing, with collar 4 inside the cup, and the flange3 rests in the channel aforesaid. .Another collar 6, identical in construction with collar 4, is then screwed upon the tubing, with its lip 5 facing the packing and the channel aforesaid receiving the downwardly-projecting flange 3', and when collar 6 is screwed firmly in place the packing 2 cannot be stripped from the tubing by any amount of hard usage to which a device of this sort is inevitably subjected. Having thus described our device, what we claim, and desire to secure by Letters Patent, 1s

A wall-packer for oil-wells consisting of the combination of a section of externally-thread- HARRY SMITH. WILLIAM WRIGHT.

Witnesses:

E. R. INMAN, B. L. RHoADs. 

